Changing a fixed IP address also changes the subnetmask

[GHBLoos]

Describe the issue you are experiencing

(maybe this should not be in operating-system, but in another section)

I changed the (DHCP) IP address to a fixed IP address using the web ui. The setting was:
IPv4 address 172.20.16.248
Subnetmask 255.255.255.0
I changed the IPv4 address to 172.20.16.15
The subnetmask changed to 255.255.255.255
I didn't notice the change before I saved the new settings. After that I wasn't able to get back into the webui.

Bug: unnecessary and unexpected change of the subnetmask.

What operating system image do you use?

rpi5-64 (Raspberry Pi 5 64-bit OS)

What version of Home Assistant Operating System is installed?

14

Did the problem occur after upgrading the Operating System?

No

Hardware details

RPi 5, 8GB,
Ethernet connected
WLAN not connected

Steps to reproduce the issue

1. new install using Raspberry Pi imager using the menu to install Home Assistant
2. Log in for the first time
3. Go to system->network
4. Change IPv4 to fixed addres (changing only the last digit of the IP address)
   That's the moment the subnetmask changes

Anything in the Supervisor logs that might be useful for us?

No

Anything in the Host logs that might be useful for us?

No

System information

No response

Additional information

No response

[sairon]

I can confirm the issue is there but the Operating System has nothing to do with that. Would you mind filing it as a frontend bug please?

[github-actions]

👋 @GHBLoos, thanks for reporting an issue!

It looks like this issue is related to Home Assistant Frontend. Please check the Home Assistant Frontend repository, the issue might have been reported already. Open a new issue in that repository if you can't find a matching issue.